bpo-38605: Revert making 'from __future__ import annotations' the default (GH-25490)

This reverts commits 044a1048ca93d466965afc027b91a5a9eb9ce23c and 1be456ae9d53bb1cba2b24fc86175c282d1c2169, adapting the code to changes that happened after it.

1 files changed, 32 insertions, 0 deletions

diff --git a/Lib/test/dataclass_module_1_str.py b/Lib/test/dataclass_module_1_str.py
new file mode 100644
index 0000000..6de490b
--- /dev/null
+++ b/Lib/test/dataclass_module_1_str.py
@@ -0,0 +1,32 @@
+from __future__ import annotations
+USING_STRINGS = True
+
+# dataclass_module_1.py and dataclass_module_1_str.py are identical
+# except only the latter uses string annotations.
+
+import dataclasses
+import typing
+
+T_CV2 = typing.ClassVar[int]
+T_CV3 = typing.ClassVar
+
+T_IV2 = dataclasses.InitVar[int]
+T_IV3 = dataclasses.InitVar
+
+@dataclasses.dataclass
+class CV:
+    T_CV4 = typing.ClassVar
+    cv0: typing.ClassVar[int] = 20
+    cv1: typing.ClassVar = 30
+    cv2: T_CV2
+    cv3: T_CV3
+    not_cv4: T_CV4  # When using string annotations, this field is not recognized as a ClassVar.
+
+@dataclasses.dataclass
+class IV:
+    T_IV4 = dataclasses.InitVar
+    iv0: dataclasses.InitVar[int]
+    iv1: dataclasses.InitVar
+    iv2: T_IV2
+    iv3: T_IV3
+    not_iv4: T_IV4  # When using string annotations, this field is not recognized as an InitVar.